﻿// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using SharpDX.Toolkit.Content;

namespace SharpDX.Toolkit.Graphics
{
    /// <summary>
    /// Internal class to load a Effect.
    /// </summary>
    internal class EffectContentReader : GraphicsResourceContentReaderBase<Effect>
    {
        protected override Effect ReadContent(IContentManager readerManager, GraphicsDevice device, ref ContentReaderParameters parameters)
        {
            var effectData = EffectData.Load(parameters.Stream);
            if (effectData == null)
                return null;

            if (parameters.AssetType == typeof(Effect))
            {
                return new Effect(device, effectData);
            }

            // Else, create a specific instance of effect using a constructor (GraphicsDevice, EffectData)
            return (Effect)Activator.CreateInstance(parameters.AssetType, device, effectData);
        }
    }
}